Trap



G. F. LYNDE,

TRAP. APPLICATION FILED OCT. 4, |920.

'Patented Feb. 28, 1922.

no OOM/y r WED.. PATENT eisernen.rnancrsnvnnn, or vcnarranoo,sa, TENNESSEE. i

TRAP.'

T0 all whom t may concern."

Be it known that l, GEORGE' FL LYNDn, a citizen of they United States, residing at Chattanooga, inthe county of Hamilton and State ofv Tennessee, vhave invented certain newA and useful;Improvements in Traps, of which the followingis a specification.

This inventionrelates to improvements in watersealed traps particularly adapted for closets andgsinksl "It isa well known fact that water sealed traps nowin general use, are subjected to fractures or ruptures'when the water freezes in the trap; The traps as heretoforel constructed are'fnot designed to pei-init expansion offtheic'e formed by freezing-of the water in the trap andcOnSequently the pressure caused by said*expansion'breaks the trap at the point occupied by the water. The object of the present invention isto provide a trap so constructed and. shaped as to perinitk thelice formed from the ywater in the trap to expandv upwardlylandbrealr without. fracturing rthe trap., i

Another obj ect ofthe present invention is to provide a trap of this character which will be of as silnple a construction as the traps lnow in general use.

Withlthe foregoing objects outlined and with other objects in view, which will appear as the description proceeds, the invention consists in the novel features hereinafter described in detail, illustrated in the accompanying drawing and more particularly pointed out in the appended claims.

Referring to t-he drawing Fig. l is a vertical longitudinal sectional view of a water closet bowl provided with iny improved trap.

Fig. 2 is a transverse sectional view of the saine taken on the line 22 of F l.

Fig. 3 is a longitudinal sectional view of a sink trap constructed in accordance with my invention.

Fig. 4 is a transverse sectional view taken on line 4 4 of Fig. 3.

In the drawing and particularly in the einbodiinent shown in Figs. l and 2, a water closet bowl is shown at l, and this bowl is provided with a liquid sealed trap having an inlet passage way 2, an elbow 3, an outlet passage way 4 and a discharge conduit 5. The passage ways 2 and 4 are separated by a transversely extending` vertical partition 6 having a narrow lower edge 7 which forms the upper wall of the elbow 3'.

The entire wall or inner surface of the in- Specication of Letters'latent. y1 Patented FGIL 235 1922i Applicatonled'oetober 4.-, 1920.- Serial No. 414,576. i

let passage way 2, with'the exception fof the portion 2 formed bythe partition k6, is inclined upwardly Aandl outnf'ardly `at all points `froin the elbowy Sfte-the water line y8; The outlet passage way 4 also has its surface, with the exception-of the portion formed by the partition 6, gradually inclined upwardlyand outwardly froinvthe elbowy 3 to thewater linc8.- f

It will, therefore, be seeny that the 'inlet and outletv passage waysy are of,l gradually in# creasing area or flared?graduallyupwardly frornthe elbow 3 to the water line, sothat any ice' formed b vthefreezingof thev water. inV theltrap,fwill 'be Vperinittei'd `to iexpandlupwardly and will not causethe bowltobe cracked; or fractured." Asl-ice ifs'forined in the trap and expansion of the saine takes place,it will'press" against theedge 7 andthis edge will? functionlto shear the iceand pre# vent the same froin rupturing the partition (t The outlet passage; way 4 andi-thedischar-ge conduit are sep arated bylan inclined partition 9," theupper edge lO'of vvhiclr'determines the height of the water line S and the passage ways 2 and 4 are preferably flared slightly above the line 8 to insure upward expansion of the ice without fracture of the bowl.

ln the form of iny invention shown in Figs. 3 and 4, la designates a sink trap constructed in accordance with my invention and including an inlet passage way 2a, an elbow 3, an outlet passage way 4a and a dis charge conduit 521. The passage ways 2a and 4a are separated by a vertical partition 6 provided at its lower end with a straight shearing edge 7a. The inlet and outlet passage ways are gradually flared upwardly -froni the elbow 3 to the water line SL. ln

other words, the front and side walls of the passage way 2EL are graduallyinclined upwardly and outwardly from the trap 8 to a point adjacent to the water line 8a and the side and rear walls of the passage Way 4tL are also gradually inclined upwardly and outwardly from the elbow to the water line. The passage way 4 aand conduit 5 are separated by a vertical partition 9ZL having an upper edge 10a which determines the water line.

IThe trap shown in Figs. 3 and 4 functions in the sanie manner as the one shown in Figs. l and 2 and further description of the operation is believed unnecessary.

It will be noted that the opposite side Walls of the partitions 6 and 6a are parallel, and it will also be noted that there are no parallel walls in either the passageway 211 or the passage way 4a. The idea in both modifications is to so form the inlet and outlet passage ways, that upward expansion 01"' any ice formed 1n the trap will be facllltated without permitting the same to rupture the trap.

I ain aware that various changes may be made in the shape and construction disclosed by the drawing without departing from the. spirit of the invention, as disclosed in the following claims. r

What l claim and desire to secure by Letters Patent is l. A liquid sealed trap including a basin, inlet and outlet passageways having their lower ends connected to the ends of the'basin,

a vertical artition se aratiner said assa'ebasin,y

the ends of the basin, a vertical partition separating said passageways and having f parallel side surfaces which extend from the basin to a point above the water line of the trap, the lower edge of said partition being straight, relatively narrow and arranged at the top of the basin, a discharge conduit, and aninclined partition separating said discharge conduit from said outlet passageway, the upper edge of said inclined partition beingvarranged at an elevation higher than the lower edgepoi1 the other partition and determining the water line of the trap, and all of the inner surfaces of said passageways, with the exception of the portions formed by said vertical partition, Vbeing Y gradually'inclined upwardly and outwardly from thebasin to a point coincident with the upper edge of the inclined partition.-

A liquid sealed trap including a basin, inletand `outlet passage ways connected to the lends 0l? said basin, and a verticalpartition separating said passage ways and provided at its lower edge with a relatively narrow portion designed to function as a shearing edge for breaking ice formed in thev trap,

'all of the inner surfaces or' said passage ways, withv the exception of the portions vformed by said partition, being. inclined upwardly and outwardly from the basin to the water line of the trap.

esonera FRANCIS LYNDE. 

